Brushless Coreless Motor Φ13×36mm 40000RPM 14W Robotics Motor BDCL1336 BODENMOTION

Overview of BDCL1336 Coreless Brushless DC Motor

The BDCL1336 coreless brushless DC motor is built around a slim Φ13 mm diameter while using a 36 mm body length to provide a substantially higher power range than shorter miniature motors. With rated speeds consistently above 40,000 rpm, it is intended for OEM systems where radial installation space is limited but elevated rotational speed and output capacity are still required.

Rather than changing the basic mechanical output across different supply platforms, the four winding versions maintain rated torque within 1.33–1.50 mN·m while supporting 9V, 12V, 18V, and 24V systems. Sensorless and Hall-sensored configurations are available, allowing the motor to be matched to different startup, feedback, and controller requirements.

Key Features of BDCL1336 High-Power Coreless Drive

• 40,000+ rpm Rated Operation – Provides rated speeds from 40,250 to 40,920 rpm for compact equipment requiring sustained high-speed rotation.
• Slim Φ13 mm Motor Diameter – Maintains a narrow radial profile while the extended 36 mm body supports increased power capacity.
• 6–14W Power Class – Offers a higher-output option for OEM systems that exceed the capability of shorter miniature brushless motors.
• Low Rotor Inertia – A rotor inertia of 0.11 g·cm² supports rapid acceleration and responsive speed changes.
• Four Winding Platforms – Available in 9V, 12V, 18V, and 24V versions with different current requirements.
• Sensorless or Hall Feedback Options – Supports basic three-phase control or Hall-sensored commutation according to the controller architecture.
• Flexible Bearing Selection – Ball-bearing and sleeve-bearing options can be evaluated according to speed, load, noise, and operating-cycle requirements.
• Optional Planetary Gearbox – Provides a transmission option when the final mechanism requires reduced speed and increased torque.

Technical Specifications of BDCL1336 13mm Micro DC Motor

The four versions represent different winding configurations. Supply voltage, driver current capacity, startup load, and target operating point should be reviewed together before selecting a specific model.

Motor Model	Unit	BDCL1336-01	BDCL1336-02	BDCL1336-03	BDCL1336-04
At Nominal
Nominal Voltage	V/DC	9	12	18	24
Nominal Speed	rpm	40920	40656	40710	40250
Nominal Current	A	1.05	0.79	0.52	0.41
Nominal Torque	mN·m	1.42	1.42	1.33	1.50
Free Load
No-load Speed	rpm	46500	46200	46000	46000
No-load Current	mA	250	196	150	100
At Max. Efficiency
Max. Efficiency	%	65.6	64.8	62.4	64.6
Speed	rpm	39060	38577	37950	38410
Current	A	1.314	1.013	0.719	0.513
Torque	mN·m	1.90	1.95	2.03	1.98
At Max. Output Power
Max. Output Power	W	14.4	14.3	14.0	14.4
Speed	rpm	23250	23100	23000	23000
Current	A	3.6	2.7	1.8	1.4
Torque	mN·m	5.90	5.91	5.80	5.99
At Stall
Stall Current	A	6.90	5.15	3.40	2.60
Stall Torque	mN·m	11.80	11.82	11.61	11.98
Motor Constants
Terminal Resistance	Ω	1.30	2.33	5.29	9.23
Terminal Inductance	mH	0.028	0.050	0.115	0.210
Torque Constant	mN·m/A	1.78	2.39	3.57	4.79
Speed Constant	rpm/V	5167	3850	2556	1917
Speed/Torque Constant	rpm/mN·m	3926	3909	3963	3841
Mechanical Time Constant	ms	4.33	4.31	4.37	4.24
Rotor Inertia	g·cm²	0.11	0.11	0.11	0.11
Number of Pole Pairs	—	1	1	1	1
Number of Phases	—	3	3	3	3
Weight	g	21	21	21	21
Typical Noise Level	dB	≤55	≤55	≤55	≤55

Not sure how to interpret model differences? See the model code breakdown below ↓

Motor Model Number Breakdown

Mechanical Design & Installation Notes

High-speed performance depends on the complete rotating assembly. Coupling accuracy, bearing selection, driver behavior, load balance, and heat dissipation should therefore be reviewed during prototype integration.

High-Speed Alignment
At speeds above 40,000 rpm, small errors in shaft concentricity, coupling alignment, or load balance can cause noticeable vibration. Impellers, couplings, and other rotating parts should be installed with controlled runout.

Bearing Load Limits
The specified bearing system supports a maximum dynamic axial load of 0.8 N and a maximum radial load of 8 N, measured 5 mm from the flange. The maximum static press-fit force is 10 N.

Bearing Configuration
Ball-bearing and sleeve-bearing versions are available. Ball bearings may be evaluated where radial stability and high-speed consistency are priorities, while the final choice should also account for noise, cost, load, and service conditions.

Mechanical Clearance
Axial play is specified at 0.05–0.15 mm, while ball-bearing radial play is limited to ≤0.015 mm. Excessive shaft impact or press force should be avoided during assembly.

Temperature Control
The permitted ambient temperature range is −20°C to +80°C, and the highest rotor temperature is 85°C. Temperature testing should be carried out with the actual enclosure, airflow, load, controller, and duty cycle.

Driver Current Margin
Although rated current ranges from 0.41 to 1.05 A, startup or stalled operation can require substantially higher current. The controller should include sufficient transient capacity and appropriate current limiting.

OEM Customization Options – BDCL1336 High-Speed BLDC Motor

Customization can be reviewed around the motor controller, available installation space, feedback method, and driven load.

Customization Item	Available Options / Description
Voltage Version	9V, 12V, 18V, or 24V winding configuration
Feedback Method	Sensorless or Hall-sensored design
Bearing Type	Ball bearing or sleeve bearing
Cable Length	Adapted to equipment layout and controller position
Connector Type	Standard or project-specific connector options
Wire Sequence	Phase and Hall wire sequence matched to the controller
Shaft Configuration	Shaft dimensions reviewed according to the driven component
Output Terminal	Customized electrical connection arrangement
Gearbox Option	Optional planetary gearbox for reduced-speed systems

For Hall-sensored versions, the motor supports Hall Sensor A, B, and C, with a specified Hall supply range of 3.5–25 VDC. Cables, connectors, and wire sequence can be adjusted according to project requirements.

Application Fields of BDCL1336 High-Speed Coreless Motor

The BDCL1336 can be evaluated for compact equipment that requires high rotational speed, low rotor inertia, and a relatively narrow motor diameter.

• Miniature Blowers – High-speed drive for compact impellers and air-moving assemblies.
• Micro Pumps and Compressors – Motor platform for small fluid-handling systems requiring elevated rotational speed.
• Portable Analytical Equipment – Lightweight rotary drive for sampling, testing, and internal instrument mechanisms.
• Precision Rotary Modules – Drive source for compact scanners, spindles, and rotating assemblies.
• Handheld Electromechanical Devices – Slim motor solution for equipment with restricted radial installation space.
• Compact Automation Systems – Fast-response drive for embedded mechanisms requiring rapid acceleration.

Suitability should be confirmed using the actual load inertia, controller, mounting structure, operating cycle, and thermal environment.

Why Choose BODENMOTION for Your BDCL1336 Motor Project

Integrating a motor above 40,000 rpm requires more than matching voltage and rated speed. The controller, rotating load, bearings, mounting structure, and thermal path all influence whether the motor can operate consistently in the final product.

• High-Speed Operating-Point Review – Rated, maximum-efficiency, maximum-output, and stall data are compared against the real load rather than using no-load speed as the main selection criterion.
• Controller Current Matching – Driver voltage, nominal current, transient current, startup behavior, and protection settings are reviewed together.
• Sensorless and Hall Selection – Feedback architecture can be selected according to startup load, speed-control requirements, wiring limits, and controller compatibility.
• Bearing and Balance Evaluation – Bearing type, coupling accuracy, shaft loading, and rotating-component balance are considered for high-speed stability.
• Cost-Effective Alternative to Premium Brands – We provide practical alternatives to premium miniature motor platforms while supporting application-specific electrical and mechanical adaptation.
• Prototype Validation Support – Samples can be tested under the actual load, airflow, controller, and duty cycle before volume production.

Customer Feedback

Germany | Miniature Blower Manufacturer
Application: high-speed impeller drive
Feedback: The slim Φ13 mm motor body provided the required rotational speed while fitting within the limited radial installation space.

Japan | Analytical Equipment Developer
Application: compact sampling mechanism
Feedback: The Hall-sensored configuration improved startup consistency and simplified integration with the existing motor controller.

United States | Portable Device OEM
Application: high-speed internal rotary module
Feedback: The 24V version reduced operating current while maintaining the required speed range, supporting a more compact power-system design.

Downloads – Datasheet

[BDCL1336 Coreless Brushless DC Motor Specification PDF]

FAQ – BDCL1336 OEM Brushless Motor

Q1: Why does the motor fail to start even though the driver voltage is correct?

A1: Correct voltage alone does not guarantee startup. The driver must also provide sufficient phase current and use a compatible commutation method. Depending on the winding version, stall current ranges from 2.60 to 6.90 A, so an undersized controller may enter protection or fail to accelerate the load.

Q2: When should a Hall-sensored version be selected?

A2: Hall feedback should be considered when the application starts under load, requires more defined commutation at low speed, or needs rotor-position information. Sensorless control may be suitable when startup conditions are predictable and reduced wiring is preferred.

Q3: Why is the actual operating speed lower than 40,000 rpm?

A3: The rated speed applies at the specified nominal operating point. Higher mechanical load, voltage drop, controller limitations, transmission losses, and insufficient current capacity can reduce the final speed. At maximum output power, motor speed is approximately 23,000 rpm, showing how speed changes as torque demand increases.

Q4: Which payment methods does BODENMOTION accept?

A4: BODENMOTION supports payment by PayPal, credit card, and T/T. The final payment arrangement may depend on order quantity, customization requirements, and cooperation stage.

Q5: Is there a lower-speed and lighter alternative?

A5: Yes. The BDCL1230 uses a smaller Φ12 × 30 mm structure, weighs 14 g, and provides rated speeds of approximately 13,600–14,025 rpm. It is more suitable when the application does not require the BDCL1336’s 40,000 rpm speed range or 14W output capacity.

Contact BODENMOTION – BDCL1336 High-Speed Motor Integration

For compact systems requiring a slim motor diameter and high rotational speed, BODENMOTION supports selection based on the complete electrical and mechanical operating conditions.

What We Can Provide

• Winding Selection – Compare 9V, 12V, 18V, and 24V versions according to the available supply and current limits.
• Driver Compatibility Review – Evaluate commutation method, transient current, startup load, Hall interface, and protection settings.
• High-Speed Mechanical Assessment – Review bearing selection, shaft load, coupling alignment, rotating balance, and mounting rigidity.
• Cable and Connector Customization – Adapt lead length, connector type, phase sequence, Hall wiring, and terminal configuration.
• Prototype Performance Testing – Verify speed, current, temperature, vibration, and startup behavior under actual system conditions.
• OEM Production Support – Provide samples, pilot quantities, customized configurations, and stable long-term supply.

📧 Email: info@bodenmotion.com
🌐 Website: https://bodenmotion.com